Water-lift.



N0. 650,|68. Patented May 22, |900.

H. D. coLMN.

WAT-ER LIFT.

l (Application filed Nov. 2, 1898.) (No Model.) l 3`Sheets$heet l.

No. 650,I68.- Patented May 22,1900.

H. n..cuLMAN.

WATER LIFT.

j (Application led Nov. 2, 1898.) (No Model.)

. Patented May 22, |900. H. D'. CLMAN. WATER LIFT.

(Application led Nov. 2, 1898.)

3 Sheets-Sheet 3 (No Model.)

ZLW

UNITED 'STATES yPATENT OFFICE.

HOWARD D. COLMAN, OF ROGKFORD, ILLINOIS.

WATER-LIFT.

srnirIcATIoN forming part of Lettere Patent ne. 650,168, detteei Mey 22', 190e. Appuootiooiuoarotembee2,189s.l seriei No. 6915.958.V (no model.)

To a/ZZ whom it' may concern: i

Be it known that I, HOWARD D. COLMAN, a

citizen of the United States, residing at Rockf ford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Water-Lit ts, of which the following is a specification.

The object of this invention is the producL tion of an apparatus for elevating water by other water under pressure where the dis# charge of the water used for operating the ap` I is a fixed stop-arm for limiting the down- Fig. 4o is a horizontal section through the base of the apparatus on dotted line y y of Fig. 2.

Like letters of reference indicate corresponding parts throughout the several views.

A is an air-chamber.

B is a vacuum-chamber.

Gis the pressure-water-supply pipe, having communication with the chamber A.

D is the intake-pipe for the water to be elevated, opening into the vacuum-chamber B.

E is the discharge-pipe for all of the water.

E is a reservoir for receiving the water.

F is the base of the apparatus.

F is a fiume or passage extending through the base F, being practically a continuation ofthe pressure-water-supply pipe C. It communicates with the cylindrical chamber F2 within the base.

F3 is a passage opening from the upper part of the chamber F2 into the discharge-pipe E.

F4 is a valve-seat at the lower end of the passage F3.

F5 is a pulse-valve for the seat F4. This valve has a valve-stem FG fixed thereto, provided with the setting-nuts F7 near the lower end thereof.

G is a disk fitting the cylindrical chamber F2 and having a slight vertical movement therein. It is provided with the two openings G. G2 is the hollow stem for said disk, which stem-'closely surrounds the valve-stem F6.

G3 is a piston fixed on the hollow stem. G4 is a cylinder situated just beneath and `ward movement of the valve-stem F".

` J is a screw-cap providing easy access to the moving parts of the apparatus.

` The valve F5 corresponds somewhat in of- `iice and operation with the pulse-valve and the valve H' with the check-valve of a hydraulic ram.

Assuming the pipes to be full of water and the movable parts in the position indicated in Fig. 2, the operation of the apparatus is as follows: The pressure-water in the ingresspipe C and passage F flows through the openings G in the disk G and through the passage F3, escaping through the dischargepipe E until its velocity is sufficient to raise the pulse-valve F5 against its seat F4. `The momentum of the column of water in the discharge-pipe E causes it to iiow on toward the reservoirE and tends to produce a vacuum in the chamber H4. To fill this partial vacuum,'water enters from the vacuum-chamber B through the passage H2, forcing open the valve H and joining the current flowing through the discharge-pipe E. The drivewater by its pressure upon the pulse-valve F5 holds the latter against its seat and at the same time tends to pull it away from its seat by pressing against the piston G3. This piston is of such a size that the pressure upon it is insufficient to open the pulse-valve F5 during the continuance of the partial vacuumin the chamber H4; but when that partial vacuum ceases the pressure upon the piston G3 is su'cient to open `the pulse-valve F5 partially, causing the pressure above and below it to become momentarily the same. The valve F5 then drops to the position shown in Fig. 2 by reason of its own Weight, assisted by the pressure of the drive-water against the piston area formed by the valve-stem F6, passing through the tubular stem G2. The

IOO

difference between the upward and lthe down-- ward pressure exerted, respectively, upon the lower and the upper sides of the pulse-valve' F5 is the amount of pressure exerted downwardly upon an area equal to that ofthe valve-stem F6, and to this extent the downward pressure uponfth'e pulse-valve Vpreddrrclosure of the said valve F5. rlhe momentum of the onfiowing Water in" the pipe Eiagainftends.l to produce a vacuum in the chamber H4, and Water is again drawn into that chamber from the vacuum-chamber'B. Y. A

Inthe operation of thisapparatus? the lio through the suction'- pipe D is nearly uni-A fornron account of the equalizing eects of thevacuum-chamber-B, and the air-chamber A, .receiving the shock of the sudden stop- `page caused` bygthe quick shutting` of the valve-F5, permits a like continuouslow of drive-water through the pressure-water--supply ripe@ 1n starting the apparatus whenk the intake-vpipe D is notrlled with. water the .pulsevalve F5 may-be actuated' by hand until all the air in that pipe is expelled through the discharge-.pipe E and a sufficient quantity ofv air removed. from the vacuum-chamber B to cause that chamber to properly perform its.

function. The Valve F5 is operated for this purpose by grasping` the set-nuts F7 at the lower end of the valve-stem.

I claim as my invention- 1. Inawater-lift, in combination, a pressure`water=supply ppe,la pulsewalve, a disk h aving a connection with the pulse-valve, a piston connecteduwith the disk, for opening the pulse-valve by the pressure of the drive- -wate`r, an intake-pipe, a discharge-pipe and cylinder, a stop on the stem `of the pulse-valve for being'engagedby the tubular stem of the disk, an intake-pipe, a Vacuum-chamber, a

ies

it- In a water-'lift in .combinatnnfa pres'-` ,siire-watersupply pipe, an air-chamber conne'cted therewith, a discharge-pipe, a cylindrical chamber between the pressure-watersupplypipe and the discharge-pipe, a pulsevalve within the cylindrical chamber, a stem 'for`the pulse-Valve,.a disk mounted on the stem, a piston connected with the disk, a pislltonfcylinder, a vacuum-chamber, an intake- Lpipe communicating therewith, and a checkvallve between the vacuum-chamber and the .discharge-piper. A -Y `5.V Ina water-lift,`i'n combination, a pressnrewaterisupply"pipefan airchamber communicating therewith, a discharge-pipe, a

ply pipe and the discharge-pipe,av stem-for the pulse-valve, a' stop on"the stem, a-perfo# rated disk and a tubular stemthereforonthe stern of the pulse-valve, a Vcylinder'for the disk,H a piston on the tubular stem, acylinder for the piston, an intake-pipe, a Vacuumchamber anda check-valve. i A

6. In a water-lift, in combination, apressu re-water-supply piper, an air-chamber connected therewith, a discharge-pipe, a cvlindrical chamber between and having communication with the pressure-water-supply pipe andthe discharge-pipe, a` pulse-Val-verin; the cylindrical chamber, a stem for the Valve, a stop o nthe stem,a stop-arm to limit the downward movement of the stem, a perforated disk in the cylindrical chamber, a tubular stem for the disk, which tubular stem surrounds the pulse-valve stem, a piston on4 the tubular stem,a cylinder forfthepiston having communication with the cylindrical chamber, a vacuum-chamber, an intake-pi pej having communication therewith,- an,V opening from the vacuum-chamberto-the dischargepipe, and a check-valve for saidopening.

7. In a water-lift, in combination, a pressure-water-supply pipe, an vair-chamber connected therewith, a discharge-pipe, a cylindrical chamber between the pressure-water- Supply pipe and the discharge-pipe, `a, pulsevalve vin said chamber, a stem for said pulsevvalve, a stop on said stem, a perforated disk in the cylinder, a tubular stemfor said disk, which stem surrounds and has. a slight longitudinal movement with relation to the stem of the pulse-valve, a piston fixed on the tubular stem, a cylinder for the piston, a stop-arm to limit downward movement of the stem of the pulse-Valve, a suction-pipe, a vacuumchamberin connection therewith,a dischargepipe and a stop-valve located betweeny the vacuumchamber andthe discharge-pipe.,

- HOWARD D. COLM'AN.

Witnesses: Y

JEANETTE M. EVANS,

discharge-pipe and a check-valve.

J. B. WHITEHEAD.

pulse-valve between the pressure-,wagter-sup-i 

